Wow, OIS on 55-200

Just taken delivery of one of these, as well as the 14mm for my XE1. Just returned from a few days on London and tried them both out. Really pleased with the 14mm, but finding the 55-200 a little slow to lock focus, even In reasonable light eith more hunting than I expected.Takes nice sharp images once it does lock, but I found I missed a few shots due to this slow focussingAny one else finding this, or might I have a bad sample?